[clang][DebugInfo][test] Make Objective-C property5.m test check LLVM IR

New name makes it easer to find and checking IR is less likely to hide
bugs (and is more consistent with the other Clang debug-info tests).

(cherry picked from commit d0a7411)

Author: Michael137

clang/test/DebugInfo/ObjC/property-explicit-accessors.m

@@ -0,0 +1,34 @@
+// RUN: %clang_cc1 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s
+ 
+// CHECK: !DIObjCProperty(name: "baseInt"
+// CHECK-SAME:            setter: "mySetBaseInt:"
+// CHECK-SAME:            getter: "myGetBaseInt"
+// CHECK-SAME:            attributes: 2446
+// CHECK-SAME:            type: ![[P1_TYPE:[0-9]+]]
+//
+// CHECK: ![[P1_TYPE]] = !DIBasicType(name: "int"
+
+@interface BaseClass2 
+{
+	int _baseInt;
+}
+- (int) myGetBaseInt;
+- (void) mySetBaseInt: (int) in_int;
+@property(getter=myGetBaseInt,setter=mySetBaseInt:) int baseInt;
+@end
+
+@implementation BaseClass2
+
+- (int) myGetBaseInt
+{
+        return _baseInt;
+}
+
+- (void) mySetBaseInt: (int) in_int
+{
+    _baseInt = 2 * in_int;
+}
+@end
+
+
+void foo(BaseClass2 *ptr) {}